Transparency example (PR only) #804
Conversation
Replace with blitting/surface utilities in the `utils` module.
DJMcNab
force-pushed
the
transparency
branch
2 times, most recently
from
2036ac9 to
ae54187
Compare
|
My use case for this would be rendering a Vello scene such that it could then be composited on top of some other wgpu generated texture such that the other content "shows through" where the Vello scene is entirely transparent. More concretely the use case I am imagining is something like rendering UI in Blitz on top of gpu-rendered content generated by something like bevy or custom wgpu rendering code. This could be useful for game UI, and it could also be useful for applications like Figma / Graphite / CAD that want standard widgets for their control UI but custom drawing for the "content". Would the approach in this PR be suitable for that? |
|
Sure, I believe so. You'd want the texture you're using for compositing to have the |
Demonstration of how you'd get transparency with #803.
I'm not planning to merge this, because I don't think that this should be part of
utils. However, I'm happy for someone to want to make the follow-up of making this configurable (cc @TheNachoBIT), if they still want to useutilsand have a transparent surface render. OTOH, #801 is for a different use case, which I would argue should just use a customTextureBlitter.